Home / 2,826.54-3,901.42-1,987.44

Finding the Fourth Proportional to 2,826.54, 3,901.42 and 1,987.44

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Solution

The fourth proportional to 2,826.54, 3,901.42 and 1,987.44 is: 2,743.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,826.54 : 3,901.42 = 1,987.44 : x
  2. Step 2: Convert to fraction form
    2,826.54/3,901.42 = 1,987.44/x
  3. Step 3: Cross multiply
    2,826.54x = 3,901.42 × 1,987.44
  4. Step 4: Simplify right side
    2,826.54x = 7,753,838.16
  5. Step 5: Solve for x
    x = 7,753,838.16/2,826.54
  6. Step 6: Final answer
    x = 2,743.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.